Ulysses Pact 2

The medical definition for this is

Ulysses Contract
Declarations by patients, made in advance of a situation in which they may be incompetent to decide about their own care, stating their treatment preferences or authorizing a third party to make decisions for them. (Bioethics Thesaurus)

This paper discusses the issue in relation to mental health.

How bound are you to your past self? Could you shoot the 50 year old conservative who as a tied dyed in the wool hippy 30 years previously wrote “If I ever vote republican please kill me”? If you are not bound to a contract by yourself of many years ago then how come there are 30 year mortgages?

There is a website here. Where people put quantifiable ambitions out in public. Keep wight below X, Make Y steps every day things like that. Are there common usages for Ulysses Contracts (not just the current cognitive health ones) that you could provide on another website? Is there a measurable way people change their thinking in response to an event that they could agree before the event to avoid?